Q Fever is transmitted by:
**Core Concept**
Q Fever is a zoonotic disease caused by the bacterium Coxiella burnetii. It is primarily transmitted to humans through inhalation of aerosolized particles contaminated with the bacteria, often from infected animals such as cattle, sheep, and goats.
**Why the Correct Answer is Right**
The correct answer involves the understanding of the mode of transmission of Q Fever. Coxiella burnetii is a highly infectious bacterium that can survive for long periods outside of a host. When an infected animal gives birth or is slaughtered, the bacteria can become airborne and be inhaled by humans, leading to infection. This mode of transmission is unique to Q Fever and is distinct from other zoonotic diseases.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as Q Fever is not primarily transmitted through contact with infected animals. While contact can occur, inhalation of aerosolized particles is the primary mode of transmission.
**Option B:** This option is incorrect as Q Fever is not transmitted through the bite of an infected tick. While ticks can be infected with Coxiella burnetii, they are not the primary vector of transmission to humans.
**Option C:** This option is incorrect as Q Fever is not transmitted through the feces of infected animals. While the bacteria can be present in animal feces, inhalation of aerosolized particles is the primary mode of transmission.
**Clinical Pearl / High-Yield Fact**
Q Fever is often referred to as the "great imitator" due to its ability to present with a wide range of symptoms, including fever, headache, and fatigue. This can make diagnosis challenging, and a high index of suspicion is required to identify infected individuals.
**Correct Answer: D. Inhalation of aerosolized particles from infected animals.**